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The fantastic 5.2L V8 found in the new Mustang GT350 is arguably the most innovative engine that’s ever come out of Detroit.

Spinning to an unheard of 8250rpm, the all-aluminum GT350 makes 526hp at 7500rpm and 429ft-lbs at 4750. What makes this V8 special, is the flat-plane crankshaft nestled in the center of the block. The result is even firing between the left and right cylinder banks, allowing for a higher redline, a better exhaust note, and more power. While the motor is based off of the original 5.0l Coyote, virtually everything has been modified to accommodate the higher redline. While being a completely different shape, they actually shaved 5lbs off the old crankshaft.

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First, the five cross-bolted main caps are removed from the block. They’re left on the block as they’re manufactured together, but need to be removed before everything else is put together.

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Bearing are fitted, and the infamous flat-plane crankshaft is lowered into place.

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The rod-piston assemblies are inserted into the block.

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Cylinder heads are pre assembled, with valves already loaded into them. The heads are then mounted onto the block of the GT350.

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Now that the heads are in place, the camshafts are installed.

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The timing chains are fitted, and at this point the engine is virtually finished.

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Crankshaft end-play is measured to determine if it’s within tolerances.

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The completed GT350 engines are spun on a dyno, in order to ensure that they’re performing as they should, and to get oil flowing throughout the engine.

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Finally, accessories such as fuel rails and ignition coils are installed and it’s valve covers are stamped and signed by the builders.

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Source: Car & Driver

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